Finding the Fourth Proportional to 424,059.72, 636,089.04 and 108,516.72

Step by Step Solution

1. Step 1: Write the proportion equation
   424,059.72 : 636,089.04 = 108,516.72 : x
2. Step 2: Convert to fraction form
   424,059.72/636,089.04 = 108,516.72/x
3. Step 3: Cross multiply
   424,059.72x = 636,089.04 × 108,516.72
4. Step 4: Simplify right side
   424,059.72x = 69,026,296,248.75
5. Step 5: Solve for x
   x = 69,026,296,248.75/424,059.72
6. Step 6: Final answer
   x = 162,774.94